Burgos, Sigfrido, F. Edens, J. Read-Snyder, A. Cantor, and Sergio A. Burgos. 2006. “Selenium Sources Affect Protein Concentration, Thioredoxin Reductase Activity and Selected Production Parameters in Reovirus Infected Broiler Chickens”. International Journal of Poultry Science 5 (9): 822–829. https://doi.org/10.3923/ijps.2006.822.829.